Derrick.



H. AUCHU.

DERRICK.

APPLICATION FILED MAR. 9, 1915.

Patented June 15, 1915.

awe/whee -rigina1 application filed June 29,

* entice,

HENRY AUCHU, OF EMPORIUM, PENNSYLVANIA.

DERRICK.

:orium, county of Cameron, and State of ennsylvania, have invented certain new and useful Improvements in Derrlcks, of

which the following is aspecification.

This invention relates to derricks.- In drilling operations 1n the 011 regions, thecommon practice 1s to erect a wooden derrick. These derricks become permanent structures, soofi go to pieces,.and prove expensive if the drilling operation is unsuccessful as they'are not adapted to be taken apart and used at another location. The success of an oil Well drilling operation can never be foretold and the cost of the derrick is lost if oil or gas is not struck.

My object is to provided a knock-down, fire-proof, metal derrick having uprights and an improved cap frame combined in an improved manner, adapting the derrick for use in oil well drilling operations and, preferably, embodied in a derrick construction which may be readily removed or taken down and moved from place to place if its use elsewhere is desired.

In carrying out the invention, I provide standards or uprights, preferably composed of telescopic sections which can be drawn out or collapsed, and an improved top frame or cap combined with the hollow upper endsof the uprights in an improved manner, as fully set forth hereinafter.

The present ap lication is a division of my application, erial N 0. 847,896, filed June 29, 1914. a

In the accompanying drawings: Figure 1 is a perspective of a complete derrick to which my improvements are shown applied; Fig. 2, a detail sectional view showing the connection between the cap frame and the end of one of the uppermost standard sections; and Fig. 3, a perspective detail of the ca vframe when inverted.

he present improvements and combination of parts are applicable to any derrick having uprights provided with tubular or open upper ends, and whlle I do not limit Specification of Letters Patent.

within each other.

Patented June 15, 1915.

1914, tierial No. 847,896. Divided and this application filed March 9,

1915. SerialNo. 13,181.

myself to the embodiment of the present invention in any particular construction of derrick, it is shown as embodied ina derrick such as set forth in my co-pending application, Serial No. 847 ,896, filed June 29, 1914. The derrick, as shown in Fig. 1, has a base 1, and standards or uprights secured thereto composed of tubular telescopic sections 2, 3, 4, 5, which fit freely and et not too loosely Suitable means are employed for holding the sections inextended or set-up arrangement. 4, '5'may be connected by braces 12, 19 and 21, and a ladder composed of sections 24 may be employed if desired, though constituting no part of the present invention.

My present invention embodies the cap frame 13 and its combination with the hollow upper ends of the uprights. The cap frame 13 is composed of angle iron sides connected together and provided at their corners with .connectors 14 which Theiuprights 2, 3, g

have flanges 15 overlapping the outer faces frame 13 by bolts 16. They have gudgeons' or lugs 17 which are received in the u open ends of the tubular sections 4 an detachably bolted thereto at 18.

When the derrick is taken down for removal to another point, the cap frame 13 is first removed by withdrawing bolts 18 and then the sections 5, 4, 3, 2 and braces 21, 12, 19 are taken down, section by section. The derrick isset up by first building the lowermost section, then the successively higher sections are set up in their order, and finally, the cap frame 13 is secured by bolts 18.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

In a knock-down derrick, the combination with uprights, the upper ones of which have hollow ends, of a cap frame consisting of independent angle iron side members and angular corner connectors having flanges, said connectors fitting the walls of the angle iron side members and fastened to the ends per are thereof and constitfiting a meims for secur- In testimonjwhereof, I hereunto afix my ing the side members together,: said eonnecsignature in presence of twowitnesses.

tors having gudgeons received 1n the hollow HENRY AUCHU. ends aforesaid, and fastening means directly Witnesses: 5 and, detael lably connectihg the gudg'eo'ns to A. E. NIVER,

said upljghts. L. V. Looxwoon. 

